在热亚矮星周围寻找行星的凌日巡天

Antoine THUILLIER, Valérie VAN GROOTEL, Francisco J. POZUELOS, Martín DÉVORA-PAJARES, Stéphane CHARPINET, Lionel SIESS
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引用次数: 2

摘要

热亚矮星是小的后红巨星分支恒星。直到今天,它们周围还没有行星被证实。在这篇文章中,我们展示了我们的第一个分析结果,通过使用TESS任务第一部分的照片测量数据进行广泛的过境调查,量化了热亚矮星周围行星的存在。我们的研究表明,大多数恒星都没有凌日行星,但有些恒星显示出潜在的有趣信号。这些现在在我们的后续程序中观察到。我们还计算了来自无数没有信号的恒星的热亚矮星周围行星的发生率上限。
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A transit survey to search for planets around hot subdwarfs
Hot subdwarf stars are small post-red-giant-branch stars. To this day, no planets have been confirmed around them. In this document we present the first results of our analysis to quantify the presence of planets around hot subdwarfs by performing a wide transit survey using photo-metric data from the first part of the mission TESS. Our work shows an absence of transiting planets for the majority of these stars, but some display potentially interesting signals. These are now observed in our follow-up procedure. We also compute upper limits of the occurrence rates for planets around hot subdwarf stars from the numerous stars displaying no signal.
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来源期刊
Bulletin de la Societe Royale des Sciences de Liege
Bulletin de la Societe Royale des Sciences de Liege Multidisciplinary-Multidisciplinary
CiteScore
0.90
自引率
0.00%
发文量
11
期刊介绍: The ‘Société Royale des Sciences de Liège" (hereafter the Society) regularly publishes in its ‘Bulletin" original scientific papers in the fields of astrophysics, biochemistry, biophysics, biology, chemistry, geology, mathematics, mineralogy or physics, following peer review approval.
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